How the Garage Door Remote Lookup works

Nothing in this tool is worked out, and nothing is summed up. It is a lookup of what the makers of openers and remotes publish themselves, as read on 11 October 2026: 108 statements, taken from 21 of the 25 documents in the source list below (the other 4 supply a condition or a sentence about the drawing), under 25 brand names.

What a line is. A column of a maker’s tick chart, one line of a printed table, one product block of a maker’s lookup page, or one sentence. Model numbers, column heads, table cells and sentences are shown as printed and, inside the lines, set in the monospace face. A maker’s sentence is quoted exactly; one sentence is put in our words (the line above the Chamberlain chart’s remote table says “keypads”, which is the maker’s slip, so the page says what the sentence says about the table without repeating that word). The marks a page of Chamberlain Group’s tool prints beside a remote are pictographs, two circles and five coloured squares; they are given in words.

What the page does with your answers. It keeps the lines read under your brand name. For most brands those are lines whose document prints the name. For 13 brands they include one page of Chamberlain Group’s tool that prints no brand name: the tool’s first page has a tile with the name, and the tile opens that page. The heading over such a card says “read under the brand name”, not “print the brand name”. For Chamberlain, LiftMaster and Craftsman, whose charts print their lines under learn-button colours, the page shows the lines whose printed label names your colour, and “not sure” shows them all. A line with no colour in its label stays on screen under every colour, with a note that it names none. The documents of the brand’s own publisher come first. That is all the page does. It reads no radio figure, date, technology name or number of switches, although the makers print them inside their lines, and it does not say what the lines add up to.

What the page cannot tell. Whether your opener is one a line names. A line says in its maker’s words which openers it speaks of (a year, a technology name, a label on the unit), and this tool asks none of that. Nor can it tell, from a brand name in a universal-remote chart, whether the maker means a garage door opener or a gate receiver: Overhead Door’s sheet says its list holds both. Where a chart prints one colour under several labels, as the charts do with yellow and with white, every such line is shown and the result says the page cannot tell which is yours.

Tick charts. The Chamberlain and LiftMaster charts mark each remote with a tick image under a learn-button colour. Each chart has four tables, and a sentence about “the chart” can be true of one table only, so every chart line here names its table and its column head as printed. The two remote tables of each chart are read (remotes made now, and legacy remotes); the two keypad tables are not. The ticks were read from the page markup by the build. An independent review on 11 October 2026 then compared all four remote tables with the rendered charts by eye, cell by cell: 371 cells, no difference. The white-column tick of the Chamberlain chart carries no tick wording in the markup; it was identified from the rendered chart.

Conditions travel with the line. Where a maker attaches a year, safety sensors, a software version of the remote, a footnote behind an asterisk, or a note that a remote is no longer made, it is printed with every line it governs, including when it sits in another document of the same maker. Those are named where they are quoted: the first page of Chamberlain Group’s tool; Genie’s product page of each of its three remotes, to which its comparison page sends the reader (the comparison line and the product page’s sentences are quoted one under the other, and the page does not reconcile them); and Overhead Door’s question-and-answer sheet. All sixteen questions of that sheet were read. What it says of the list as a whole governs every line of the chart and is quoted once under the chart, under the words “Printed with every line above”; its question about Marantec is quoted whole directly under the Marantec line; the line each of the remote’s buttons is set to when sold is quoted under that line. Its questions about programming steps are not used, because this tool gives no programming steps and a question without its answer would be half a statement; nor are its two questions about car buttons.

Where two documents print different things. One case is looked for, mechanically: a remote that a page of Chamberlain Group’s tool prints with a mark for a colour while a chart shows the same remote without a tick in a column for that colour. When it is found, a fixed sentence names both documents and both printed cells, and the page does not choose. Nothing else is compared. In particular the year ranges that different documents print beside one colour are not compared: each line shows its own.

Dates. 23 of the 25 documents print no date, and the page says “no date printed” on each. The two Overhead Door sheets print “Rev Sept 2022”. Makers change these pages without notice: a line here is what the document said on the day it was read, and the link beside it is the place to check.

What is left out, and why.

• Any opinion on a remote. The page has no field in which to name a remote or a model number.
• Keypads and a car’s built-in buttons, except where a maker’s sentence about remotes names them too.
• A second question about yellow. The charts split the yellow button by year range, the LiftMaster chart also by the letters “MC”, and the identification chart by shape and by a label on the unit. A yellow answer shows every yellow line under the label its document prints.
• The last column of the tick charts, “Competitor Brands”, and the makers’ own pages of Linear, Raynor, Stanley, Wayne Dalton, Marantec, FAAC and the other brands that appear here only in another maker’s document. Overhead Door’s pages of its own-brand remotes refused the request; its lines here come from the chart of its universal remote.
• From Overhead Door’s sheet: what it says about brands and specifications that are not on its list. That is about its list, not about any line shown here.
• Prices, shops, programming steps and advice on what to buy.

The drawing. It is drawn from at most three sentences, each quoted under it with the document that prints it. The first is in the remote chart of each of Chamberlain, LiftMaster and Craftsman. The second comes from a Chamberlain Group article that names no brand. The third, on where the wires connect, comes from an article that names Chamberlain openers only: that part is drawn, and that sentence quoted, for Chamberlain and before a brand is chosen, and left out for LiftMaster and Craftsman. The drawing is not to scale and shows no colour. No such sentence was read about any other brand, and nothing is drawn there.

This tool cannot be published unless it reproduces every example below. 18 are copied from a published source.